NEW ORLEANS POLICE SAY A 12- YEAR-OLD BOY IS BEHIND BARS... IN THE ATTEMPTED MURDER OF A 17- YEAR-OLD.. POLICE SAY ON MAY 22ND.. IN BROADMOOR ... THE BOY WAS INVOLVED IN AN ALTERCATION WITH THE VICTIM WHEN HE TOOK OUT A GUN AND BEGAN FIRING.. THE VICTIM WAS SHOT MULTIPLE TIMES.. IT ALL HAPPENED IN THE 32-HUNDRED BLOCK OF GENERAL TAYLOR STREET.